Transmission in drive, makes first shift smoothly but won't make second shift into high gear. have replaced both input and output sensors, still wont shift.

input and out put speed sensors tell the TCM and the ECM the difference between engine rpms and transmission input roms so that the correct gear ratio can be selected
A speedo sensor reads the out put shaft (drive line ) shaft and refers to road speed for speed and odometer readings and to calculate the fuel consumption rate
it is possible that you have replaced the wrong sensor
Talk with an accredited transmission specialist shop and have the problem diagnosed

Check your input or output sensors on top of tranny. Check engine light?

the second code is govener pressure sensor. the pressure is to low. the first code is sensor voltage to low, i would check the wiring where it plugs into trans for corrosion. also make sure the kick down cable on the throttle is connected and not broke because this cable controls the line pressure.

are there any codes? Does it shift ok in 1st and 2nd? sounds like your over drive shift solenoid or your 3 and 4 shift solenoid is stuck and needs to be replaced

ok whats the governor? i have a 05 interceptor cv. my lights the dims and high beams keep clicking out. i checked the fuse under the dash and they are all good,and to work the highbeams i need to pull back on the blinker switch?

OK... brains are expensive. It sounds like your PT STARTS OK, but keeps your TRANSMISSION locked.

Many transmissions have a 'lock' that is coupled to the car BRAKES. So the transmission may not allow SHIFTING if the BRAKE SWITCH is not sensed as 'brakes applied'.

APPLIED BRAKES = OK TO START/SHIFT. So it's possible a defective switch is your problem?

Find really GREAT information here:

How To Solve The PT Cruiser Transmission Problems

And there is this: "You Probably have a 604 41 TE auto trans (this is a four speed automatic trans)and if this is the case. Then you need to have the input and the output turbine sensor's replaced,(aka speed sensor) same thing different name. These sensors are cheap and have a high failure rate due to high temps the trans produces."

Now see this:
Transmission not shifting 2001 Chrysler PT Cruiser

and more here:

How to replace 41 TE auto transmission in an 01 pt cruiser neon pt 1

While you are at YOUTUBE search for:
"PT Cruiser Automatic transmission" won't shift

Anthony

It depends. Are there codes in the computer now? Has it bee reset since you replaced the input speed sensor? If the codes are still in there, the transmission may still be in limp-in mode.

Your transmission is computer controlled. Trying to diagnose or repair it without the ability to interface with the computer that controls it about the same as surfing the internet with no monitor. If you push the right buttons and click your mouse just right, you might get to the page you are looking for (not likely, but possible). However, when you do get there, you still won't know it....

If that oil is transmission fluid, you may be low on fluid. That would cause harsh shifts. Make sure your transmission is full.
Is it just reverse and drive that ****? Do second and third shift smooth? If so, you may have a too-high idle.
If idle is good, and your transmission didn't get low on fluid, then I would suggest you drain and refill the transmission, and install a new transmission filter while you have the bottom pan off. Usually, you can buy a filter and pan gasket as a kit.

these transmissions are notorious for being "junk" replace transmission.

sound like the vechicle speed sensor.